Home / 29,472.04-40,655.28-20,505.34

Finding the Fourth Proportional to 29,472.04, 40,655.28 and 20,505.34

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Solution

The fourth proportional to 29,472.04, 40,655.28 and 20,505.34 is: 28,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.04 : 40,655.28 = 20,505.34 : x
  2. Step 2: Convert to fraction form
    29,472.04/40,655.28 = 20,505.34/x
  3. Step 3: Cross multiply
    29,472.04x = 40,655.28 × 20,505.34
  4. Step 4: Simplify right side
    29,472.04x = 833,650,339.20
  5. Step 5: Solve for x
    x = 833,650,339.20/29,472.04
  6. Step 6: Final answer
    x = 28,286.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.